Issue Summary

If we try to export in ical format, the file downloaded has zero bytes.

Steps to Reproduce

1. Create a gadget Issue Calendar
2. Under Project or a Saved filter select a project
3. On Date to display select Due date
4. Click on Export in iCal format

Expected Results

The file is downloaded correctly.

Actual Results

The file download does not contain any size (0 bytes).

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available